1993 DODGE TRUCK tow bar

INTRODUCTION

INTRODUCTION

DESIGNATIONS,
LABELS/PLATES/DECALS,
CODES
AND DIMENSIONS/WEIGHTS .
CONTENTS

page
MEASUREMENT
AND TORQUE
... 1 SPECIFICATIONS
page

. 11

DESIGNATIONS, LABELS/PLATES/DECALS, CODES
AND
DIMENSIONS/WEIGHTS
INDEX

page

Engine
and
Transmission/Transfer
Case
Identification
2

Engine/Transmission/GVWR
4

Equipment
Identification
Plate
3
International
Vehicle Control
and
Display
Symbols
10

Major Component
Identification 3
VEHICLE DESIGNATIONS The Vehicle Code chart lists description and code
for Ram Truck and Sport Utility vehicles. The codes are used to identify vehicle types in charts, captions
and in service procedures. The vehicle codes are
dif­

ferent than the Vehicle Identification Number (VIN) or the wheelbase/model code.
VEHICLE SAFETY CERTIFICATION
LABEL
A certification label is attached to the left side
B-pillar. The label certifies that the vehicle conforms
to Federal Motor Vehicle Safety Standards (FMVSS).
The label also lists the: • Month and year of vehicle manufacture
• Gross Vehicle Weight Rating (GVWR). The gross
front and rear axle weight ratings (GAWR's) are
based on a minimum rim size and maximum cold tire inflation pressure Vehicle Identification Number (VIN)
Type of vehicle
Type of rear wheels (single or dual) Bar code
Month, Day and Hour (MDH) of final assembly
VEHICLE IDENTIFICATION NUMBER (VIN) PLATE The Vehicle Identification Number (VIN) plate is
attached to the top left side of the instrument panel.
The VIN contains 17 characters that provide data
concerning the vehicle. Refer to the decoding chart to
determine the identification of a vehicle.
page

Trailer
Towing Specifications
4

Vehicle Code Plate
2

Vehicle Designations
1

Vehicle Dimension
4

Vehicle
Identification
Number (VIN) Plate
1

Vehicle Safety
Certification
Label
............. 1

Vehicle Weights
4
VEHICLE CODE
DESIGNATIONS
VEHICLE CODE
= AD
(DODGE
RAM

PICKUP
&
CHASSIS
CAB)

VEHICLE
FAMILY LINE DESCRIPTION
AD1
D150

AD2
D250

AD3
D350
PICKUP

4x2

AD5
W150
AD6
W250

AD7
W350
PICKUP

4x4

AD2
D250
AD3
D350
CHASSIS
CAB

4x2

AD6
W250
AD7
W350
CHASSIS
CAB

4x4

AD4
AD100

AD4
AD150
SPORT
UTILITY
4x2

AD8
AD100

AD8 AD
150
SPORT
UTILITY
4x4
J90IN-32

•
• —
LUiRICATlON
AND
MAINTENANCE
0 - 1
CONTENTS

page
page

CHASSIS
AND
BODY
28
ENGINE MAINTENANCE
14
DRIVETRAIN
.,,, 22
GENERAL INFORMATION
1

GENERAL
INFORMATION INDEl

page

Classification
of
Lubricants
. 3

Components
Requiring
No
Lubrication
4

Fuel Requirements
. 2
Introduction
1

Lubrication
and
Replacement Parts Recommendation
3
page

Routine Maintenance
2

Starting
Assistance (Jump Starting)
9

Vehicle
Lifting
Recommendations
............ 10

Vehicle Noise
Control
2

Vehicle Towing Recommendations
11

INTRODUCTION
Lubrication and maintenance is divided into re­
quired and recommended service tasks. The required service tasks must be completed to verify the emis­
sion controls function correctly. The recommended
service tasks should be completed to maintain safety
and durability. This information will assist the service personnel
in providing maximum protection for each owner's
vehicle. Conditions can vary with individual driving habits.
It is necessary to schedule maintenance as a time in­
terval as well as a distance interval. It is the owner's responsibility to determine the ap­
plicable driving condition. Also to have the vehicle serviced according to the maintenance schedule, and
to pay for the necessary parts and labor. Vehicles with a Gross Vehicle Weight Rating
(GVWR) of 3 855 kg (8,500 lbs.) or less must conform
to light duty emission standards. Vehicles with a Gross Vehicle Weight Rating (GVWR) of 3 856 kg
(8,501 lbs.) or more must conform to heavy duty
emission standards. The GVWR for each vehicle is listed on the Safety
Certification Label. This label is affixed to the driver
side door pillar (Fig. 1).
Additional maintenance and lubrication informa­
tion is listed in the Owner's Manual.
Mm
rv
CHRYSLER
DATE
OF MFR
MFD BY CORPORATION
GVWR
GAWR FRONT
GAWR REAR
WITH
TIRES

WITH
TIRES
RIMS
AT

RIMS
AT

PSI
COLD

PSI
COLD THIS VEHICLE CONFORMS
TO
ALL APPLICABLE FEDERAL MOTOR VEHICLE SAFETY

STANDARDS
IN
EFFECT ON
THE
DATE
OF
MANUFACTURE SHOWN ABOVE.

SINGLE
DUAL

BAR
CODE

VEHICLE MADE
IN

4648503
J9UN-25

Fig. 1 Vehicle Safety
Certification
Label

SEVERE DRIVING
CONDITIONS
Vehicles subjected to severe driving conditions
should decrease the interval between component
maintenance. Severe driving conditions are defined
as:

• Frequent short trip driving less than 24 km (15
miles)
• Frequent driving in dusty conditions
• Trailer towing
• Extensive engine idling
• Sustained high speed operation
• Desert operation
• Frequent starting and stopping
• Cold climate operation

LUBRICATION
AND
MAINTENANCE

0 - 12
LUBRICATION
AND
MAINTENANCE

• A vehicle equipped with SAE approved sling-type
towing equipment can be used (Fig. 10). However,
many vehicles are equipped with air dams, spoilers, and/or ground effect panels. In this case a wheel-lift
towing vehicle or a flat-bed hauling vehicle is recom­ mended (Fig. 10). If a flat bed device is used, the ap­
proach angle should not exceed 15 degrees.
GROUND CLEARANCE The lifted wheels of the disabled vehicle should be
a minimum of 10 cm (4 in.) off the ground. Make
sure there is enough clearance at the opposite end.
This is critical when towing over rough terrain. If necessary, the rear ground clearance can be in­creased by removing the wheels from the lifted end
and then towing with the lifted end closer to the
ground. If the rear wheels are removed, secure the
brake drums. A 20 cm (8 in.) ground clearance must
be maintained between brake drums or rotors and the ground.
SAFETY PRECAUTIONS The following safety precautions must be consid­
ered when preparing for and during a vehicle towing operation:
• Remove exhaust pipe tips that interfere with the
tow sling and crossbar • Padding should be placed between the tow sling/
crossbar and any painted surfaces
• If the vehicle is damaged, secure the loose and pro­
truding parts
• Always use a safety chain system that is indepen­ dent of the lifting and towing equipment
• When placing tow hooks on the rear axle, position them so they do not damage the brake tubing or
hoses
• Do not allow any of the towing equipment to con­
tact the fuel tank
• Do not tow the vehicle by connecting to the front
or rear shock absorbers
• The operator should not go under a vehicle while
it is lifted by the towing equipment. The vehicle
should first be supported by safety stands
• Do not allow passengers in a vehicle being towed
• Observe all state and local laws involving warning signals, night illumination, speed, etc.
• Do not exceed a towing speed of 48 km/h (30 mph)
• Avoid towing distances of more than 24 km (15
miles) whenever possible • Do not attach tow chains or a tow sling to a
bumper, the steering linkage, the universal joints, or a drive shaft
REAR-END RAISED TOWING It is recommended that the rear-end raised towing
method be used. Vehicles can be towed with the front
wheels on the ground for extended distances at speeds not exceeding 48 km/h (30 mph) (Fig. 11). (1) Attach the J-hooks around the axle shaft tubes
outboard of the rear springs. (2) Position and center the sling under and for­
ward of the rear bumper. (3) Attach safety chains (with pads) at each end of
the rear bumper.
(4) Turn the ignition switch to the OFF position to
unlock the steering wheel. (5) Clamp the steering wheel with the front wheels
in the straight ahead position.

CAUTION:
Do not use the steering
column
lock
to

secure
front
wheel
in the straight-ahead
position.

(6) Shift the transmission to NEUTRAL.

POSITION CENTER BAR FORWARD
OF
BUMPER
-
/
J-HOOKS OUTBOARD
OF
SPRINGS
RN967A

Fig. 11 Rear-End
Raised
Towing
FRONT'END RAISED TOWING If a vehicle cannot be towed from the rear, the
front-end raised towing method normally can be
used (Fig. 12). (1) Center the sling with the bumper and position
it at the frame front crossmember.

CAUTION:
Use tow
chains
with
J-hooks
for
con­
necting
to the
disabled
vehicle's
lower
suspension
arms.
Never use
T-hooks.

(2) Route the J-hooks and tow chains over the
steering linkage outboard of the coil spring.
(3) Attach the J-hooks to the outer end of the
lower suspension arms.
(4) Raise the vehicle.
(5.) Attach the safety chains to the disabled vehicle
at the frame rails.
Vehicles equipped with a MANUAL TRANSMIS­
SION can be towed with the rear wheels on the

•

LUBRICATION
AND
MAINTENANCE
0 - 13 ground. Do not exceed speeds of 48 km/h (30 mph) or
a distance of 24 km (15 miles). The transmission
must be in neutral.
Front-end raised towing for a vehicle equipped
with an AUTOMATIC TRANSMISSION is not rec­ ommended.

CAUTION:lt
is not
recommended
to
flat
tow a
vehi­
cle.
LOCKED
VEHICLE
TOWING
When a locked vehicle must be towed, use a tow
dolly or flat bed hauler.
POSITION
CENTER
BAR
AND
WOOD
BEAM
BEHIND

BUMPER
AND
AHEAD
OF
STRUTS
TO
SUPPORT
CHAINS CLEAR
OF
SWAY
BAR RN966
Fig.
12 Front-End
Raised
Towing—Typical

2
- 32
FRONT
SUSPENSION
AND
AXLE

• (5) Disconnect flexible brake fluid hose fittings at
the frame crossmember. Plug the hoses at the fit­

tings.

(6) Remove the shock absorber lower nut and stud
from the axle shaft tube bracket. Remove the nuts and disconnect the stabilizer bar links from the
spring brackets.
(7) Disconnect the vacuum hoses and wiring con­
nections from the shift motor housing.
(8) Remove nuts and the washers from the spring
U-bolts. Remove the complete front axle from the ve­
hicle.

INSTALLATION
(1) Position the front axle under the front of the
vehicle with the axle spring pads under the springs.
Place the spring brackets over the springs. Make sure the stabilizer bar link bolt holes face toward the
rear of the vehicle.
(2) Install the spring U-bolts, washers and nuts.
Refer to Front Suspension — 4WD Vehicles within
this group. (3) Install the shock absorber. Refer to Front Sus­
pension — 4WD Vehicles within this group. (4) Connect the stabilizer bar links to the spring
brackets. Refer to Front Suspension-4WD Vehicles
within this group.
(5) Remove plugs and connect the brake hose fit­

tings.
Refer to Group 5, Brakes. (6) Connect the drag-link ball stud to the steering
knuckle arm. Refer to Group 19, Steering. (7) Connect the drive shaft to the pinion yoke with
the installation reference marks aligned. Install the
washers and the nuts and tighten to 19 N*m (14 ft. lbs.) torque.
(8) Connect the vacuum hoses and wiring connec­
tions to the shift motor housing. (9) Remove the supports, lower the vehicle and re­
move the block from the brake pedal.
(10) Raise the vehicle.
• Bleed and adjust the brakes
• Lubricate all the ball stud fittings
• Inspect the differential housing lubricant level. Re­
fer to Group 0, Lubrication and Maintenance. (11) Lower the vehicle and test the axle and sus­
pension operation.

DIFFERENTIAL
DISASSEMBLY

REMOVAL/DISASSEMBLY (1) Note the installation reference letters
stamped on the bearing caps and housing ma­
chined sealing surface (Fig. 38). (2) Remove the differential bearing caps.
(3) Position Spreader W-129-A with the tool dowel
pins seated in the locating holes (Fig. 39). Install the
holddown clamps and tighten the tool turnbuckle fin­ ger-tight.
INSTALLATION

EFERENCE
LETTERS

J9003-92

Fig.
38 Bearing Cap
Identification
SPECIAL
TOOL

MODEL
44-W-129-A
MODEL
60-D-167
DIAL

INDICATOR

«ar"P—

J9202-113

Fig.
39
Differential
Housing
Separation
(4) Install a pilot stud at the left side of the differ­
ential housing. Attach Dial Indicator to housing pilot stud. Load the indicator plunger against the opposite
side of the housing (Fig. 39) and zero the indicator.

CAUTION:
Do not
spread
over the specified
dis­

tance.
If the
housing
is over-separated, it
could
be distorted or
damaged.

(5) Separate the housing enough to remove the
case from the housing. Separate housing a maxi­
mum distance of 0.38 mm (0.015 in) with the spreader tool. Measure the distance with the dial
indicator (Fig. 39).
(6) Remove the dial indicator.
(7) Pry the differential case loose from the hous­
ing. To prevent damage, pivot on housing with the end of the pry bar against case.
(8) Remove the case from housing. If they are re­
usable, retain the differential bearing cups and bear­ ings together as matched sets.

•

TAPERED

BUSHING

J9202-53

Fig.
32 Tapered
Bushing
Installation

J9202-52

Fig.
33
Lower
King
Pin and Retainer
Installation
(12) Install the axle shaft, refer to Axle Shaft and
U-Joint Installation.

COMPLETE
AXLE REMOVAL/INSTALLATION SERVICE
INFORMATION
It is not necessary to remove the complete front
axle from the vehicle for routine service. If the hous­
ing or axle shaft tubes are damaged, the complete axle can be removed and installed via the following
procedures.

REMOVAL
(1) Block the brake pedal in the up position. Raise
and support the vehicle at a comfortable working
height.
(2) Remove the front wheels/tires.
FRONT SUSPENSION
AND
AXLE
2 - 59
(3) Mark the front drive shaft and the pinion yoke
for installation alignment reference.
(4) Disconnect the front drive shaft from the axle
yoke. Attach the drive shaft to the frame rail with
wire.

(5) Remove the cotter pin, the nut, and disconnect
the drag link from the steering knuckle arm (left side only). Discard the cotter pin.
(6) Disconnect flexible brake fluid hose fittings at
the frame crossmember. Plug the hoses at the fit­

tings.
(7) Remove the shock absorber lower nut and stud
from the axle shaft tube bracket. Remove the nuts and disconnect the stabilizer bar links from the
spring brackets. (8) Remove nuts and the washers from the spring
U-bolts. Remove the complete front axle from the ve­
hicle.
INSTALLATION (1) Position the front axle under the front of the
vehicle with the axle spring pads under the springs.
Place the spring brackets over the springs. Make sure the stabilizer bar link bolt holes face toward the
rear of the vehicle.
(2) Install the spring U-bolts, washers and nuts.
Refer to Front Suspension — 4WD Vehicles within
this group. (3) Install the shock absorber. Refer to Front Sus­
pension—4 WD Vehicles within this group.
(4) Connect the stabilizer bar links to the spring
brackets. Refer to Front Suspension—4WD Vehicles within this group.
(5) Remove plugs and connect the brake hose fit­

tings.
Refer to Group 5, Brakes. (6) Connect the drag-link ball stud to the steering
knuckle arm. Refer to Group 19, Steering. (7) Connect the drive shaft to the pinion yoke with
the installation reference marks aligned. Install the
washers and the nuts and tighten to 19 N-m (14 ft. lbs.) torque.
(8) Remove the supports, lower the vehicle and re­
move the block from the brake pedal.
(9) Raise the vehicle.
• Bleed and adjust the brakes
• Lubricate all the ball stud fittings
• Inspect the differential housing lubricant level. Re­
fer to Group 0, Lubrication and Maintenance.
(10) Lower the vehicle and test the axle and sus­
pension operation.

DIFFERENTIAL DISASSEMBLY
REMOVAL/DISASSEMBLY
(1) Note the installation reference letters
stamped on the bearing caps and housing ma­
chined sealing surface (Fig. 34).
(2) Remove the differential bearing caps.

•

REAR SUSPENSION
AND
AXLE
3 - 13

SEALANT
1/16-TO

3/32-INCH
(1.59-TO
38-AAM)
THICK
BEAD

DIFFERENTIAL HOUSING
COVER

(TYPICAL)
J9003-85 Fig, 2 Sealant On Homing
Cower

PINION

GEAR
MATE
SHAFT

O

DIFFERENTIAL CASE
LOCK
SCREW
J9003-110

Fig. 3 Pinion Mate Shaft Lock Screw (7) Push the axle shaft in toward the center of the
vehicle. Remove the axle shaft C-clip lock from the axle shaft (Fig. 4).
(8) Remove the axle shaft. Use care to prevent
damage to the axle shaft bearing.
(9)
Inspect the axle shaft bearing contact surface
area for indications of wear. if
wear exists,
the
axle shaft
and
bearing

should be
replaced. Normal bearing
contact on
the shaft
will
be a dull gray and it
could appear
to be lightly
dented.
ADJUSTER
, SIDE

LOCK
^
GEAR
AXLE

SHAFT
•!
C-CLIP LOCK
J9003-111

Fig.
4 Axle Shaft C-Clip
Lock
(10) If any of these conditions exist, the axle shaft
and bearing must be replaced.
The normal appearance will be a dull gray
surface that could appear slightly dented.
AXLE SHAFT SEAL AND BEARING REMOVAL (1) Remove the axle shaft seal with a small pry
bar.
(2) Remove the bearing if it appears damaged or
the axle shaft shows any of the conditions described above. (3) Remove the axle shaft bearing.
• 8 3/8-inch diameter (Fig. 5), use Remover C-4167 and Slide Hammer C-637
• 9
1/4-inch
diameter (Fig. 6), use Remover C-4828
SPECIAL
TOOL

C-637
SPECIAL
TOOL

C-4167

AXLE
SHAFT

TU1E

J9103-11

Fig.
5 Bearing
Removal
(8
3/8-Axle)

•

COOLING
SYSTEM
7 - 37
CAUTION:
Do not
remove
water
pump pulley-to-wa­

ter
pump
bolts
(Fig. 54), This
pulley
is
under spring
tension.

(7) Remove four bolts securing fan blade assembly
to viscous fan drive (Fig. 54).
INSPECTION The fan cannot be repaired. If fan is damaged, it
must be replaced. Inspect fan as follows:
(1) Remove fan blade and viscous fan drive as an
assembly from the engine. Refer to preceding Re­
moval procedure.
(2) Remove fan blade assembly from viscous fan
drive unit (four bolts).
(3) Lay fan on a flat surface with leading edge fac­
ing down. With tip of blade touching flat surface, re­
place fan if clearance between opposite blade and surface is greater than 2.0 mm (.090 inch). Rocking
motion of opposite blades should not exceed 2.0 mm (.090 inch). Test all blades in this manner.

WARNING:
DO NOT
ATTEMPT
TO
BEND
OR
STRAIGHTEN
FAN
BLADES
IF NOT
WITHIN
SPECI­
FICATIONS.

(4) Inspect fan assembly for cracks, bends, loose
rivets or broken welds. Replace fan if any damage is
found,

CAUTION:
If fan
blade assembly
is
replaced
be­

cause
of
mechanical damage,
water
pump
and
vis­

cous
fan
drive should
also
be
inspected. These

components
could have been damaged
due to ex­

cessive
vibration.

INSTALLATION (1) Install fan blade assembly to viscous fan drive.
Tighten bolts (Fig. 48) to 23 N*m (17 ft. lbs.) torque. (2) Position fan shroud and fan blade/viscous fan
drive assembly to vehicle as a complete unit.
(3) Install fan shroud.
(4) Install fan blade/viscous fan drive assembly to
water pump shaft (Fig. 54). (5) Install coolant reserve/overflow tank to fan
shroud. Snaps into position.
(6) Install throttle cable to fan shroud.
(7) Connect negative battery cable.

COOLING
SYSTEM
FAN-DIESEL ENGINE

REMOVAL (1) Disconnect negative battery cable from battery.
(2) Remove the fan shroud mounting bolts. Posi­
tion fan shroud towards engine.

CAUTION:
Do not
remove
the fan
puHey bolts. This pulley
is
under spring tension.
(3) The thermal viscous fan drive/fan blade assem­
bly is attached (threaded) to the fan hub shaft (Fig.
55).
Remove the fan blade/fan drive assembly from
fan pulley by turning the mounting nut clockwise (as
viewed from front). Threads on the viscous fan drive are LEFT HAND. A Snap-On 36 MM Fan Wrench
(number SP346 from Snap-On Cummins Diesel Tool
Set number 2017DSP) can be used. Place a bar or
screwdriver between the fan pulley bolts to prevent
pulley from rotating.

THREADED
Fig.
55 Fan
Blades/Viscous
Fan Drive-5.9L
Diesel
(4) Remove the fan shroud and the fan blade/vis­
cous drive as an assembly from vehicle.
(5) Remove fan blade-to-viscous fan drive mount­
ing bolts.
Inspect the fan for cracks, loose rivets, loose or
bent fan blades.
INSPECTION The fan cannot be repaired. If the fan is damaged,
it must be replaced. Inspect the fan as follows:
(1) Remove fan blade and thermal viscous fan
drive assembly from engine. Refer to the preceding
Removal procedure.
(2) Remove fan blade assembly from thermal vis­
cous fan drive unit (four bolts). (3) Lay fan on a flat surface with leading edge fac­
ing down. With tip of blade touching flat surface, re­
place fan if clearance between opposite blade and surface is greater than 2.0 mm (.090 inch). Rocking
motion of opposite blades should not exceed 2.0 mm (.090 inch). Test all blades in this manner.